18216082872

Names of 18216082872

• Cardinal: 18216082872 can be written as Eighteen billion, two hundred sixteen million, eighty-two thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8216082872 × 10¹⁰

Factors of 18216082872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 301

Divisors of 18216082872

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 104 108 117 156 162 216 234 243 283 312 324 351 468 486 566 648 702 729 849 936 972 1053 1132 1404 1458 1698 1944 2106 2187 2264 2547 2808 2916 3159 3396 3679 4212 4374 5094 5832 6318 6792 7358 7641 8424 8748 9477 10188 11037 12636 14716 15282 17496 18954 20376 22074 22923 25272 28431 29432 30564 33111 37908 44148 45846 56862 61128 66222 68769 75816 80089 88296 91692 99333 113724 132444 137538 160178 183384 198666 206307 227448 240267 264888 275076 297999 320356 397332 412614 480534 550152 595998 618921 640712 720801 794664 825228 893997 961068 1041157 1191996 1237842 1441602 1650456 1787994 1922136 2082314 2162403 2383992 2475684 2681991 2883204 3123471 3575988 4164628 4324806 4951368 5363982 5766408 6246942 6487209 7151976 8045973 8329256 8649612 9370413 10727964 12493884 12974418 16091946 17299224 18740826 19461627 21455928 24987768 25948836 28111239 32183892 37481652 38923254 51897672 56222478 58384881 64367784 74963304 77846508 84333717 112444956 116769762 155693016 168667434 175154643 224889912 233539524 253001151 337334868 350309286 467079048 506002302 674669736 700618572 759003453 1012004604 1401237144 1518006906 2024009208 2277010359 3036013812 4554020718 6072027624 9108041436 18216082872
• Sum of all divisors σ(n): 55360922400
• Sum of proper divisors (its aliquot sum) s(n): 37144839528
• 18216082872 is an abundant number, because the sum of its proper divisors (37144839528) is greater than itself. Its abundance is 18928756656

Bases of 18216082872

• Binary: 10000111101110000110101110110111000₂
• Hexadecimal: 0x43DC35DB8
• Base-36: 8D9DVI0

Squares and roots of 18216082872

• 18216082872 squared (18216082872²) is 331825675199571768384
• 18216082872 cubed (18216082872³) is 6044563998492754471794533518848
• The square root of 18216082872 is 134966.9695592221
• The cube root of 18216082872 is 2631.1866953533

Scales and comparisons

• 18,216,082,872 seconds is equal to 579 years, 11 weeks, 1 day, 7 hours, 1 minute, 12 seconds.
• To count from 1 to 18,216,082,872 would take you about one thousand, one hundred fifty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 18216082872 cubic inches would be around 219.3 feet tall.

Recreational maths with 18216082872

• 18216082872 backwards is 27828061281
• The number of decimal digits it has is: 11
• The sum of 18216082872's digits is 45
• More coming soon!